Chapter 15, Problem 3P

Read the box “The ‘Beta’ of a Stock” in the attachment.a. Suppose that the value of β is greater than 1 for a particular stock.Show that the variance of (R - Rf) for this stock is greater than thevariance of (Rm - Rt).b. Suppose that the value of β is less than 1 for a particular stock. Is itpossible that variance of (R - Rf) for this stock is greater than thevariance of (Rm - Rt)? (Hint: Don’t forget the regression error.) c. In a given year, the rate of return on 3-month Treasury bills is 2.0%and the rate of return on a large diversified portfolio of stocks (theS&P 500) is 5.3%. For each company listed in the table in the box,use the estimated value of β to estimate the stock’s expected rate ofreturn.

An ideal value-relevant attribute is one for which the correlation coefficient of the values of the attribute and the stock prices is Group of answer choices a. +2.0                                                 b. zero c. +1.0 d. -1.0

a) Discuss the difference between a price-weighted index and a value-weighted index. Give one example for the price-weighted index and one example for the value-weighted index and discuss any problems/advantages associated with the specific indices. b) We assume that investors use mean-variance utility: U = E(r) – 0.5 × Ao², where E(r) is the expected return, A is the risk aversion coefficient and o? is the variance of returns. Given that the optimal proportion of the risky asset in the complete port- folio is given by the equation y* = E , where r; is the risk-free rate, E(rp) is the expected returm of the risky portfolio, o, is variance of returns, and A is the risk aversion coefficient. For each of the variables on the right side of the equation, discuss the impact of the variable's effect on y* and why the nature of the relationship makes sense intuitively. Assume the investor is risk averse. Ao